Radiation therapy is a cancer treatment that uses concentrated radiation beams to kill cancer cells. The most common type of radiation therapy is external beam radiation. This type involves a machine that directs high-energy beams of radiation at ...

A lung needle biopsy is used to gather a piece of lung tissue for testing and examination. It is often used to diagnose an irregular area of tissue in or around the lungs. The technique is also called percutaneous needle aspiration.

According to the Centers for Disease Control (CDC), more than 70 percent of individuals who smoke cigarettes would like to quit (CDC, 2012). However, most people who try to quit are not successful in their first attempt. This is because the body p...